# PowerReader Lite vs Rotational Speed Converter

The clearest difference is price: PowerReader Lite at Free against Rotational Speed Converter's $1.99. PowerReader Lite also leads on update cadence (every 10 days vs every 10 months) and iOS requirement (8.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

PowerReader Lite is free to download; Rotational Speed Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PowerReader Lite ships an update every 10 days, Rotational Speed Converter every 10 months. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PowerReader Lite | Rotational Speed Converter |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/powerreader-lite/id418291126/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 53.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 10 months |
| Monetization | Free | — |
| Size | 9 MB | 1 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [冠兰 姜](https://appshunter.io/developer/413920142) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### PowerReader Lite

[App page](https://appshunter.io/ios/app/powerreader-lite/id418291126)

This application allows users to view a wide range of document and image file formats, including text, PDF, and office documents. It offers features like full-text search, online translation, and automatic saving of reading progress. The app supports landscape mode and various text encoding options for a comfortable reading experience.

**Highlights:** Supports txt, pdf, png, jpg, doc, xls, ppt, and more, Landscape view mode, Diverse text encoding options, Full text search, Online translation engine, Automatically saves last reading point

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Rotational Speed Converter

[App page](https://appshunter.io/ios/app/rotational-speed-converter/id1388335882)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PowerReader Lite free?

PowerReader Lite is free to download, with no in-app purchases.

### Is Rotational Speed Converter free?

Rotational Speed Converter costs $1.99, with no in-app purchases.

### Do PowerReader Lite or Rotational Speed Converter have ads?

Neither PowerReader Lite nor Rotational Speed Converter shows ads.

### Which is updated more often, PowerReader Lite or Rotational Speed Converter?

PowerReader Lite ships an update every 10 days, and Rotational Speed Converter every 10 months. Most recently, PowerReader Lite was updated on October 19, 2026 and Rotational Speed Converter on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*